 AX transmission |
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| r_towle |
 Mar 15 2003, 05:24 PM
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#1
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Custom Member  Group: Members Posts: 24,588 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States 
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So,
I want to stop shifting so much at the Autocross. What gears would you all recommend??? Rich |
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| ChrisFoley |
Mar 22 2003, 05:29 PM
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#2
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I am Tangerine Racing Group: Members Posts: 7,934 Joined: 29-January 03 From: Bolton, CT Member No.: 209 Region Association: None
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QUOTE(TimT @ Mar 22 2003, 06:31 AM) Is 6:29 the stock 914 final drive? the 901 box in my 911 has a 7:31 final drive 914s only came with the 7:31 AFAIK. The 6:29 is the only alternate R&P that I am familiar with for the 901 box. It provides almost 10% increase in rpm at the same speed. That plus shorter tires helps make the stock gears more usable on a racetrack with a stock powerplant. The spread is still just as wide, but the rpms are higher. For SCCA Improved Touring it's the only legal way to get more usable torque to the ground. Tim, are you planning to run at the PCA race at LRP this spring? BTW, I was just teasing in the last post. (IMG:style_emoticons/default/biggrin.gif) Sorry for hijacking the AX thread. Back to the topic. In an AX car the 6:29 might help, not sure. It would mean you have to shift into second as soon as the car is rollling, and shift up to third for any straight section. Second might become just right for the real tight stuff, too. |
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Posts in this topic
r_towle AX transmission Mar 15 2003, 05:24 PM
ChrisReale Not a professional answer (ill leave that to the "... Mar 15 2003, 06:15 PM Zeke In that case, Chris, I think you're friend has... Mar 15 2003, 06:42 PM J P Stein I would like an A or B first. We are pretty much S... Mar 15 2003, 07:57 PM ChrisReale Zeke, he IS going faster than me, by about ten f... Mar 15 2003, 08:50 PM J P Stein <... Mar 19 2003, 08:33 PM porsche735 Rich,
As I said, no gears to buy. All you do is m... Mar 19 2003, 09:24 PM Brad Roberts I normally use the terms (Drive and Driven gears) ... Mar 19 2003, 09:35 PM Brad Roberts Richard,
We flip 5th gear to make a new shorter 3... Mar 19 2003, 10:52 PM Mike T QUOTE
drew365 This sounds like a good mod for a short road cours... Mar 20 2003, 09:46 AM Joseph Mills I've been given two spare trannys from an ex-r... Mar 20 2003, 10:18 AM Brad Roberts Joseph.
Flip a 5th from the tranny you want to us... Mar 20 2003, 11:08 AM Brad Roberts Oh,
we chat about this like it is nothing. NONE o... Mar 20 2003, 11:10 AM James Adams Gear chart for about a stock diameter tire (calcul... Mar 20 2003, 11:19 AM Zeke QUOTE
Travis Neff So, for a hot street setup - you would want to obt... Mar 20 2003, 01:19 PM TimT Brad
I took the liberty to play with the pic yo... Mar 20 2003, 03:58 PM TimT oops helps to attach the pic Mar 20 2003, 04:03 PM Zeke I just did this and that's exactly what it loo... Mar 20 2003, 04:31 PM bpick84 It will run okay in reverse cut, but it may whine ... Mar 21 2003, 09:35 AM Zeke No one is gonna explain to me what "delta" is (I t... Mar 21 2003, 10:46 AM Mueller 3.09-1.89=1.2
1.2/3.09=39% differance (delta)
1.8... Mar 21 2003, 11:13 AM Demick I think the picture in Tim's post above shows ... Mar 21 2003, 12:04 PM Brad Roberts Bill Pickering ?? If that is you... welcome. Thank... Mar 21 2003, 12:17 PM r_towle I am close to understanding this...please forgive ... Mar 21 2003, 05:33 PM TimT QUOTE
Zeke <... Mar 21 2003, 05:53 PM Demick Rich
Drive gears are always on the input shaft, d... Mar 21 2003, 06:05 PM Brad Roberts It wasnt designed for it, but I personally have be... Mar 21 2003, 06:22 PM TimT I wondered about the thrust issue. Then being an e... Mar 21 2003, 06:38 PM porsche735 Back to this stock 5th thing.... Why would you wa... Mar 21 2003, 07:08 PM TimT Milt did you get that spreadsheet I sent your way... Mar 21 2003, 07:24 PM Racer Chris Brad Roberts Chris,
The thread started out as a AUTOX thread..... Mar 21 2003, 11:49 PM TimT Chris, I just bought the GT4 car, havent turned a ... Mar 22 2003, 08:31 AM TimT Chris I know your were teasing just wanted to use ... Mar 22 2003, 06:28 PM
mskala This may not apply to many, but for PCA
AX in our ... Mar 22 2003, 06:57 PM |
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